In the project that i am currently working on, we decided to use PHPUnit for doing our unit testing, and i found that it was not a straight forward thing to install that I had thought it would be. I had to start by installing Pear, and as soon as i type 'go-pear' in command prompt and pressed enter key I got my first error. So here are the steps needed to install PEAR and PHPUnit error free on WAMP.
Since the steps to install the WAMP server are pretty easy, he focuses on the other two technologies. He breaks up the install into the steps for PEAR and then the steps for installing and configuring PHPUnit. Obviously you'll need to change some paths for your system, but it's a pretty simple process and you should be up and running in no time.